The Starrett 798A-8/200 Electronic Caliper has a measuring Range of 0-8"/ 200mm with .0005" resolution and features a large, easy-to-read, high contrast LCD readout. It includes IP67 protection against coolants, water, chips, dust and dirt often found in machine shop environments. Its induction type linear encoder system and inch/millimeter metric conversion makes Starrett precision measuring tools the right choice for any job. Also comes in a fitted, plastic case and has Rolling Thumb Wheel, Control Buttons on Face, Zero, On/Off and Inch/mm conversion; Fine adjustment, Slide lock, Zero at any position and Auto shut-off after 30 minutes of non-use.